مقاله جوشکاری با عنوان : A study on numerical analysis of the resistance spot welding process

H. Zhigang a, I.S. Kim b,*, J.S. Son b, H.H. Kim b, J.H. Seo b, K.C. Jang c,
D.K. Lee c, J.M. Kuk c

چکیده:

Purpose: Over the last few years, there has been a growing interest in quantitative representation of heat transfer
and fluid flow phenomena in weld pools in order to study relationships between the processing variables and
the quality of the weldment produced and to use this information for the optimization and mobilization of the
welding process.
Design/methodology/approach: A 2D axisymmetric Finite Element Method (FEM) model has been developed
to analyze the transient thermal behaviors of Resistance Spot Welding (RSW) process. In this model, the
temperature dependent material properties, phase change and convectional boundary conditions were taken
account for the improvement of the calculated accuracy, but the determination of the contact resistance at the
surface is moderately simplified in order to reduce the calculating time through the analysis.
Findings: The developed model has been employed the thermal history of the whole process (including cooling)
and temperature distributions for any position in the weldment